static pressure

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static pressure

[′stad·ik ′presh·ər]
(acoustics)
The pressure that would exist at a point in a medium if no sound waves were present.
(fluid mechanics)
The normal component of stress, the force per unit area, exerted across a surface moving with a fluid, especially across a surface which lies in the direction of fluid flow.
The average of the normal components of stress exerted across three mutually perpendicular surfaces moving with a fluid.

static pressure

1. In an air distribution system, the pressure which the fan must supply to overcome the resistance to airflow through the system ductwork and system components.
2. The pressure which a fluid exerts on a surface at rest with respect to it.
3. At a point, the atmospheric pressure in the absence of sound waves; usually expressed in pascals.

static pressure

The atmospheric pressure of the air through which the aircraft is flying.
References in periodicals archive ?
Figure 2 shows examples of ratios of static pressure loss per air path compared to energy recovery effectiveness for sensible-only crossflow plate exchangers and total (sensible and latent) recovery wheels.
Variable Experimental Ranges E Ranges Static pressure [+ or -]0.3 IWC Belt speed [+ or -]4 IPM Z5 and Z6 Set point [+ or -]10[degrees]C
Mass averaged total and static pressures obtained from the probe traverses are higher for configuration with pressure surface squealer
Both of the airflow chambers had assist blowers whose speed could be modified to independently adjust the static pressures at the primary inlet and discharge to the FPTU to the desired values for each test.
Another metric of interest in forced-air systems is the external static pressure, which is the increase in pressure from the return side to the supply side.
The pressure-airflow characteristic function for each path relates the airflow rate through each path to differential static pressures at two connected nodes.
Typically, an operator theorized a problem might be system effect, but looking at the fan curve and the static pressures, rpm, etc., decided it must be something else.
(2012), the models developed from the prior experimental work allowed a modeler to use the sets of equations to simulate the hourly performance of a particular FPTU in a building if the static pressures inside the duct system were known.
One must be aware that higher operating static pressures increases the acoustic signature of the ACBs.
The pressure airflow characteristic function for each path relates the airflow rate through each path to differential static pressures at two connected nodes.
The torque-driven design of ECM motors allows them to maintain a relatively constant flow rate in an air terminal unit, regardless of downstream static pressures (Kenty 2007).